/// <summary>
/// HTTP 下载文件
/// Current Thread Download
/// </summary>
/// <param name="URL"> 下载文件地址 </param>
/// <param name="buffer"> 将下载的文件存入该字节数组 </param>
/// <param name="Prog"> 用于显示的进度条 </param>
public void DownloadFile( string URL, ref byte [] buffer, ProgressBar prog)
{
try
{
System.Net.HttpWebRequest Myrq = (System.Net.HttpWebRequest)System.Net.HttpWebRequest.Create(URL);
System.Net.HttpWebResponse myrp = (System.Net.HttpWebResponse)Myrq.GetResponse();
long totalBytes = myrp.ContentLength;
if (prog != null )
{
prog.Maximum = ( int )totalBytes;
}
using (MemoryStream ms = new MemoryStream(( int )totalBytes))
{
Stream st = myrp.GetResponseStream();
long totalDownloadedByte = 0 ;
byte [] by = new byte [ 1024 ];
int osize = st.Read(by, 0 , ( int )by.Length);
while (osize > 0 )
{
totalDownloadedByte = osize + totalDownloadedByte;
System.Windows.Forms.Application.DoEvents();
ms.Write(by, 0 , osize);
if (prog != null )
{
prog.Value = ( int )totalDownloadedByte;
}
osize = st.Read(by, 0 , ( int )by.Length);
}
buffer = ms.ToArray();
st.Close();
}
}
catch (Exception ex)
{
buffer = null ;
Console.WriteLine(ex.Message);
}
}
嘻、 request 和 response 都比较好用。